CN112361158A

CN112361158A - Supporting device with controllable rigidity and CT machine frame system

Info

Publication number: CN112361158A
Application number: CN202011446952.8A
Authority: CN
Inventors: 刘岿; 陆泉望; 杨理
Original assignee: Suzhou Boying Medical Technology Co ltd
Current assignee: Suzhou Boying Medical Technology Co ltd
Priority date: 2020-12-11
Filing date: 2020-12-11
Publication date: 2021-02-12

Abstract

The invention discloses a supporting device with controllable rigidity and a CT machine frame system, wherein the supporting device comprises an oil cylinder, the oil cylinder is composed of a cylinder barrel, a piston and a piston rod, the interior of the cylinder barrel is divided into a rod cavity and a rodless cavity by the piston, and the supporting device is characterized in that: the valve is arranged, two connecting openings of the valve are respectively communicated with the rodless cavity and the rod cavity through a first pipeline and a second pipeline, the two connecting openings are controlled to be switched on and off through the valve, fluid media are filled in the rod cavity, the rodless cavity, the first pipeline and the second pipeline, the cylinder barrel and the piston rod are respectively used as two supporting components of the supporting device, and the rigidity of the supporting device is changed through the switching on and off of the adjusting valve. The CT machine frame system comprises a base, a tiltable part and a driving part, and at least one rigidity-controllable supporting device is arranged between the base and the tiltable part. The invention realizes the controllable rigidity of the supporting device and can be used for supporting equipment needing posture change.

Description

Supporting device with controllable rigidity and CT machine frame system

Technical Field

The invention relates to a supporting device, in particular to a device capable of controlling supporting rigidity, and particularly relates to a device capable of automatically switching the supporting rigidity through control.

Background

Commonly used supporting devices, particularly devices suitable for supporting various kinds of equipment, usually have inherent rigidity coefficients, and it is difficult to change the supporting rigidity thereof by external control.

Some equipment needs to switch the pose when working, and especially some equipment with large span and low rigidity needs to keep the current pose with higher rigidity after reaching the target pose. For example, in a gantry system of a medical CT machine, according to the application scene requirements, a tiltable portion may be disposed in a gantry, and when a position of a set tilt angle is reached, a good rigid support is required to be provided, so as to avoid situations such as vibration and offset during a detection process. The functions are realized by adopting a pure mechanical support structure, the structure is complex, the angle of the frame is difficult to adjust steplessly, and the support effect is easily influenced due to the problems of structural member abrasion and the like.

The novel supporting device with controllable rigidity is provided, and is of great significance for solving the problems.

Disclosure of Invention

The invention aims to provide a rigidity-controllable supporting device which can be controlled to switch between low rigidity and high rigidity so as to meet the supporting requirements of various posture-adjustable equipment. Another object of the present invention is to provide a CT machine frame system using the supporting device.

In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows: the utility model provides a controllable strutting arrangement of rigidity, includes the hydro-cylinder, the hydro-cylinder comprises cylinder, piston and piston rod, and the cylinder is inside to be divided into by the piston has pole chamber and no pole chamber two parts, is equipped with the valve, two connection opening of valve are respectively through first pipeline and second pipeline and no pole chamber and have the pole chamber intercommunication, by the valve control break-make between two connection opening, it has fluid medium to fill in pole chamber, no pole chamber, first pipeline and the second pipeline, cylinder and piston rod are as two supporting component of strutting arrangement respectively, change strutting arrangement's rigidity through the break-make of governing valve.

In the technical scheme, the cylinder barrel and the piston rod are respectively connected with two parts to be supported by equipment, the rod cavity, the rodless cavity, the first pipeline and the second pipeline form a closed structure through the valve, when the valve is switched on, fluid media can flow freely, the supporting device is in a low-rigidity state, the two supported parts can move relatively, when the valve is switched off, the fluid media do not flow, and the supporting device is in a high-rigidity state, so that the equipment is supported.

According to the further technical scheme, a first connecting structure is fixedly arranged at one end of a rodless cavity of the cylinder barrel, and a second connecting structure is fixedly arranged at the outer end of the piston rod. For connection to the apparatus for which the support device is to be used.

In the above technical solution, the first connection structure and the second connection structure are respectively selected from one of an ear ring, a fish eye joint, a pin shaft, and a thread.

The fluid medium in this application may be a liquid medium or a gaseous medium.

According to the preferable technical scheme, the valve is an electromagnetic valve.

The valve may also be a manual valve, a fluid-controlled valve, or a valve controlled by other mechanical means.

In order to realize another purpose of the invention, the adopted technical scheme is as follows: a CT machine frame system comprises a base, a tiltable part and a driving part, wherein the tiltable part is rotatably connected on the base, the driving part drives the tiltable part to rotate relative to the base so as to adjust the tilt angle of the tiltable part, at least one rigidity-controllable supporting device is arranged between the base and the tiltable part, when the driving part drives the tiltable part to rotate, a valve in the rigidity-controllable supporting device is in a conducting state, and when the tiltable part stops rotating, the valve in the rigidity-controllable supporting device is in a disconnecting state.

According to a further technical scheme, the CT rack system is provided with a driver controlled by a computer of a CT machine, a valve in the supporting device with controllable rigidity is an electromagnetic valve, one output end of the driver controls the on-off of the electromagnetic valve, and the other output end of the driver controls the driving part to work.

Wherein, the driving component can be a hydraulic driving device or an electric push rod.

Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:

1. according to the invention, the oil cylinder and the pipeline form a closed system, and the closed system is used as a supporting device, and the supporting device has two states of no rigidity (extremely low rigidity) and high rigidity through the on-off of the valve, so that the rigidity of the supporting device is controllable;

2. the invention can be applied to a large-span structure system with weak rigidity, when the driving part drives the structure system to change the pose, the supporting rod can be switched to a non-rigidity state, and the load of the driving device can not be increased; after the target pose is reached, the supporting rods can be switched to a high-rigidity state, the supporting rigidity of the structural system is improved, and the safe operation of the system is guaranteed.

Drawings

FIG. 1 is a schematic structural diagram of a first embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a second embodiment of the present invention;

FIG. 3 is a schematic diagram of the second embodiment after the posture is adjusted;

fig. 4 is a schematic view of a driving structure of the second embodiment.

Wherein: 1. an oil cylinder; 2. a cylinder barrel; 3. a piston; 4. a piston rod; 5. a rod cavity; 6. a rodless cavity; 7. an electromagnetic valve; 8. a first conduit; 9. a second conduit; 10. a first connecting structure; 11. a second connecting structure; 21. a drive member; 22. a base; 23. a tiltable portion; 24. a support device with controllable rigidity.

Detailed Description

The invention is further described with reference to the following figures and examples:

the first embodiment is as follows: referring to the attached drawing 1, the rigidity-controllable supporting device comprises an oil cylinder 1, wherein the oil cylinder 1 is composed of a cylinder barrel 2, a piston 3 and a piston rod 4, the inside of the cylinder barrel 2 is divided into a rod cavity 5 and a rodless cavity 6 by the piston 3, an ear ring is fixedly connected to the outer end of the cylinder barrel at one end of the rodless cavity 6 to serve as a first connecting structure 10, and an ear ring is fixedly connected to the outer end of the piston rod 4 to serve as a second connecting structure 11.

The hydraulic support is provided with an electromagnetic valve 7, a first oil port of the electromagnetic valve 7 is communicated with a rodless cavity 6 through a first pipeline 8, a second oil port of the electromagnetic valve 7 is communicated with a rod cavity 5 through a second pipeline 9, the first oil port and the second oil port are controlled to be switched on and off by the electromagnetic valve 7, fluid media are filled in the rod cavity 5, the rodless cavity 6, the first pipeline 8 and the second pipeline 9, the cylinder barrel 2 and the piston rod 4 are respectively used as two support parts of the support device, and the rigidity of the support device is changed by adjusting the switching on and off of the electromagnetic valve.

The filled fluid medium may be liquid oil or air.

When the electromagnetic valve is switched on, the fluid medium can flow freely, the supporting device is in a state close to no rigidity, the equipment parts can move relatively, when the electromagnetic valve is switched off, the fluid medium cannot flow freely, and the supporting device is in a high rigidity state, so that the equipment is supported.

Example two: referring to fig. 2, a medical CT machine frame system is composed of a base 22, an inclinable portion 23, a driving member 21, and a support device 24 with controllable rigidity. Wherein the tiltable part 23 is pivotally connected to the base 22.

Referring to fig. 4, the driving member 21 in this embodiment adopts a hydraulic transmission mechanism to drive the tiltable part 23 to rotate relative to the base to adjust the tilting angle thereof, and a support device 24 with controllable rigidity is provided at the other end of the frame for supporting the tiltable part.

Referring to fig. 2 and 3, the gantry needs to have different postures when working, the driving part 21 is used for changing the posture of the gantry, and the supporting device 24 with controllable rigidity is used for locking the gantry to improve the rigidity of the gantry when the gantry reaches the working posture.

The typical block diagram of the system is shown in fig. 4, the supporting device 24 with controllable rigidity and the driving component 21 are respectively connected to a driver, the driver receives computer instructions to control the supporting device 24 with controllable rigidity, and the driving component 21 completes the designated action.

The process of pose transformation is as follows:

(1) the computer sends out an instruction, the driver drives the electromagnetic valve in the supporting device 24 with controllable rigidity to be conducted, and the supporting device 24 with controllable rigidity is switched to a non-rigidity state;

(2) the computer sends out an instruction, the driving part 21 drives the rack to rotate to reach a target pose, and the supporting device 24 with controllable rigidity follows up;

(3) the computer sends out an instruction, the driver drives the electromagnetic valve in the rigidity-variable supporting rod 24 to close, and the supporting device 24 with controllable rigidity is switched to a high rigidity state.

Claims

1. The utility model provides a controllable strutting arrangement of rigidity, includes the hydro-cylinder, the hydro-cylinder comprises cylinder, piston and piston rod, and the inside piston that is divided into has pole chamber and no pole chamber two parts, its characterized in that by the cylinder: the valve is arranged, two connecting openings of the valve are respectively communicated with the rodless cavity and the rod cavity through a first pipeline and a second pipeline, the two connecting openings are controlled to be switched on and off through the valve, fluid media are filled in the rod cavity, the rodless cavity, the first pipeline and the second pipeline, the cylinder barrel and the piston rod are respectively used as two supporting components of the supporting device, and the rigidity of the supporting device is changed through the switching on and off of the adjusting valve.

2. The controllable stiffness support device of claim 1, wherein: a first connecting structure is fixedly arranged at one end of a rodless cavity of the cylinder barrel, and a second connecting structure is fixedly arranged at the outer end of the piston rod.

3. The controllable stiffness support device of claim 2, wherein: the first connecting structure and the second connecting structure are respectively selected from one of an ear ring, a fisheye joint, a pin shaft and a thread.

4. The controllable stiffness support device of claim 1, wherein: the fluid medium is a liquid medium or a gaseous medium.

5. The controllable stiffness support device of claim 1, wherein: the valve is an electromagnetic valve.

6. The controllable stiffness support device of claim 1, wherein: the valve is a manual valve, a fluid-controlled valve, or a valve controlled by other mechanical means.

7. A CT gantry system comprising a base, a tiltable portion rotatably coupled to the base, and a driving member for driving the tiltable portion to rotate relative to the base to adjust a tilt angle thereof, wherein: at least one controllable stiffness support apparatus according to any one of claims 1 to 6, wherein the valve of the controllable stiffness support apparatus is in an on state when the tiltable section is driven to rotate by the driving means, and the valve of the controllable stiffness support apparatus is in an off state when the tiltable section stops rotating.

8. The CT machine gantry system of claim 7, wherein: the computer-controlled CT device is provided with a driver controlled by a computer of the CT machine, a valve in the supporting device with controllable rigidity is an electromagnetic valve, one output end of the driver controls the on-off of the electromagnetic valve, and the other output end of the driver controls the driving part to work.